DxO often releases free packs to showcase new features. These are highly optimized for the software’s specific sliders (like Smart Lighting and ClearView Plus).
The Reddit community is surprisingly active. Users occasionally share Google Drive or Dropbox links to their personal presets. Sort by "Top of All Time" and look for posts titled "My go-to wedding presets." Always scan downloads for safety, but the community is generally trustworthy. dxo photolab presets download free top